James~

A novice idol, mascot of Nitro+ and the main character from the visual novel game SoniComi by Nitro+. She has also appeared in the parody opening of Mahou Shoujo Madoka Magica that Nitro+ released as an April fools' prank, along with other characters from the same company.

Umaru is a renowned beautiful 16-year-old girl in town, living with her elder brother Taihei. She acts a perfect sister with a kind heart, intelligence and popularity, who everybody admires.

Mirai Nikki (literally Future Diary) is a dark manga about the asocial Yukiteru Amano, who obsessively keeps journals. One day, he finds that his imaginary friend Deus Ex Machina, the lord of time and space, has made his cell phone diary able to predict the future.

The Neighbor's Club—a club founded for the purpose of making friends, where misfortunate boys and girls with few friends live out their regrettable lives. Although Yozora Mikazuki faced a certain incident at the end of summer, the daily life of the Neighbor's Club goes on as usual.

Sakura Dormitory is a dorm of the high school affiliated with Suimei University of the Arts (often shortened as Suiko), which hosts the strangest, most trouble-making students. After being kicked out of the normal dorm for keeping a stray cat, Sorata Kanda moves into Sakura Dormitory.

Taken from AniDB - Once, there was a group of close childhood friends. However, by the time they entered high school, they had grown apart from each other.

It's not your typical shonen. You might be wondering, what’s Gintoki’s end goal here?